Mafalda Sarraguça

Oct 27, 2023 | mdpi.com | Joana Gonçalves |Claudia Marques |Cláudia Nunes |Mafalda Sarraguça

2. Results and DiscussionMIR spectroscopy and DSC analysis are used as characterization techniques to confirm that all the ETH is converted to ETB in the extraction procedure that is performed (Figure 1). The thermogram of ETH (Figure 1a) shows a first endothermic peak with an onset of 75.2 °C and enthalpy change of −22.93 J/g correspondent to a solid–solid transition and a second endothermic event at 202.2 °C with an enthalpy change of −133.0 J/g correspondent to the melting point.